Question

-2 3/10+|-3 1/8| |-модуль

Answer 1

Ответ:

- 2 3/10+( -3 1/8)= - 2 12/40 - 3 5/40= - (2 12/40+3 5/40)= - 5 17/40

Пошаговое объяснение:

Answer 2

Let's break down the expression step by step:

1. |-3 1/8| means the absolute value of -3 1/8. The absolute value of a number is its distance from zero on the number line, always positive. So |-3 1/8| = 3 1/8.

2. Now, we have -2 3/10 + 3 1/8.

3. To add these two mixed numbers, we first need to find a common denominator. The common denominator for 10 and 8 is 40.

4. Convert -2 3/10 to an improper fraction: -2 3/10 = -23/10.

5. Convert 3 1/8 to an improper fraction: 3 1/8 = 25/8.

6. Now, we have -23/10 + 25/8.

7. To add fractions with different denominators, find a common denominator. In this case, it's 40.

8. Rewrite both fractions with the common denominator:

   -23/10 * 4/4 = -92/40 25/8 * 5/5 = 125/40

9. Now, we have -92/40 + 125/40.

10. Add the fractions: -92/40 + 125/40 = 33/40.

So, the final result of the expression is 33/40.